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Unformatted text preview: uld increase the solubility of Ni(OH)2(s)? HCl NH3 Ni(NO3)2 NaOH 56. The molar solubility of _____________ is not affected by the pH of the solution. a) MnS b) AlCl3 c) KNO3 d) NaF e) Na3PO4 57. For which salt should the aqueous solubility be most sensitive to pH? a) Ca(NO3)2 b) CaF2 c) CaCl2 d) CaBr2 e) CaI2 Precipitation and Separation of Ions (Section 17.6) 58. A solution contains Ca2+ at a concentration of 2.0 x 10‐4 M. If 40.0 mL of this solution is added to 25.0 mL of 5.0 x 10‐3 M NaF, will a precipitate form? If 40.0 mL of the Ca2+ solution is added to 25.0 mL of 5.0 x 10‐3 M Na3PO4 will a precipitate form? Ksp = 3.9 x 10‐11 For CaF2, Ksp = 2.0 x 10‐29 For Ca3(PO4)2, 59. Will a precipitate form when 4.5 mL of 0.025 M Pb(NO3)2 and 1.5 mL of 0.0065 M KF are mixed? How could you tell? 60. Which salt precipitates first and what is the minimum concentration of Ag+ necessary to cause this precipitation in a solution containing 7.5 mL of 0.025 M NaCl and 7.5 mL of 0.025 M Na3PO4? Ksp Ag3PO4 = 1.3 x 10‐20 Ksp AgCl...
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This homework help was uploaded on 03/28/2014 for the course CHEM 123 taught by Professor Larosa during the Spring '06 term at Ohio State.
- Spring '06